1. physics

    A 3.00 kg block starts from rest at the top of a 36.0'> incline and slides 2.00 m down the incline in 1.60 s. (a) Find the acceleration of the block. m/s2 (b) Find the coefficient of kinetic friction between the block and the incline. (c) Find the

    asked by Anonymous on February 27, 2011
  2. physics

    A 3.00-kg block starts from rest at the top of a 31.0° incline and slides 2.00 m down the incline in 1.40 s. (a) Find the acceleration of the block. m/s2 (b) Find the coefficient of kinetic friction between the block and the incline. (c) Find the

    asked by john on February 21, 2016
  3. Physics

    Two steel blocks are at rest on a frictionless horizontal surface. Block X has a mas of 3.0 kg ans is attacthed by means of a light taut string to block Y that has a mass of 12 kg. A force of 45 N (E) is applied to block x. Calculate the force block Y

    asked by Lena on April 17, 2009
  4. math

    a millionaire leaves 1.4 million dollars in his will to be shared between his three children in the ratio of their ages. if they are 24,28,32 years old, calculate to the nearest dollar the amount they will each receive? PLEASE HELP!!!

    asked by Anonymous on September 23, 2011
  5. Math

    Ama, Karla and Daniel are siblings. Ama is 3 years older than Karla and Daniel is 2 years older than Ama.The sum of their ages is 32. How old is each child. Please help me I don't know what to do, it's my High School Summer Holiday Homework!!! But I'm

    asked by Laiba on June 25, 2016
  6. Algebra

    Aris is twice as old as Rico while Jay is 24 years younger than Aris. In half of Aris' age six years ago was three less than one-half the sum of Rico's age in four years and Jay's present age, find the ages of each.

    asked by Hikari on December 6, 2015
  7. physics

    an 8g bullet is shot into a 4kg block, at rest on a frictionless surface. the bullet remains lodged in the block. the block moves into a spring and compresses it 9.40cm. the force constant of the spring is 1000 N/m. a) what is the initial velocity of the

    asked by Anonymous on July 23, 2011
  8. physics

    In Fig. 8-49, a block slides down an incline. As it moves from point A to point B, which are 3.0 m apart, force acts on the block, with magnitude 3.8 N and directed down the incline. The magnitude of the frictional force acting on the block is 5.3 N. If

    asked by Anonymous on October 14, 2010
  9. physics

    Each of 108 identical blocks sitting on a frictionless surface is connected to the next block by a massless string. The first block is pulled with a force of 108N. Part A. What is the tension in the string connecting block 108 to block 107? Part B. What is

    asked by Josh on October 9, 2011
  10. Math

    If Ann is 6 years older than her sister, Sue, and John is 5 years older than Ann, and the total of their ages is 41. Then how old is Sue?

    asked by Hu on May 27, 2008
  11. algebra

    Althea is 5 years older than Leah, and Leah is 4 years older than Jessica. The sum of thier ages is 34. How old is Althea?

    asked by Tiana on October 15, 2010
  12. Art

    I am studying the Middle Ages, and am supposed to whittle something. I have never whittled anything more than the point to the spear I made from a stick, and don't know what to whittle. Any ideas for a simple beginner's project? Thanks for any help. Thank

    asked by Jenna on April 4, 2007
  13. Math

    The back-to-back stem-and-leaf plot below shows the ages of patients seen by two doctors in a family clinic one day. Compare the ages of the patients of Doctor 1 and Doctor 2 using the mean and median of each data set. Ages of doctor's patients Doctor 1

    asked by Person on April 28, 2018
  14. fractions !

    In a neighborhood 10 houses are for sale and 53 are not for sale. Write a fraction representing the portion of houses that are for sale

    asked by Anonymous on January 21, 2013
  15. Physics

    A block of mass m1 is on top of a block of mass m2. Block 2 is connected by an ideal rope passing through a pulley to a block of unknown mass m3 as shown. The pulley is massless and frictionless. There is friction between block 1 and 2 and between the

    asked by XYZ on June 22, 2013
  16. physics

    a 3.5 kg block is accelerated from rest by a compressed spring of spring constant 640 N/m. The block leaves the spring at the springs relaxation length.The block then travels over a horizontal floor with coefficient of kinetic friction 0.25. The friction

    asked by help on November 23, 2010
  17. Physics

    Ok I got a question I asked before except there are other parts that I didn't ask so here we go Three blocks on a frictionless horizontal surface are in contact with each other A force F is applied to block 1 (mass m1). Draw a free-body diagram for each

    asked by Physics on July 12, 2009
  18. urgent physics ?

    I have drawn my force body diagrams, but I need help making forming the equation for this problem. Any assistance is greatly appreciated! A 60 kg block slides along the top of a 100 kg block. The lighter block has an acceleration of 3.8 m/s2 when a

    asked by stevie on October 3, 2014
  19. Math

    the back-to-back stem-and-leaf plot below shows the ages of patients seen by two doctors in a family clinic one day. what is the difference between the age of the oldest patient seen by doctor 1 and the age of the oldest patient seen by doctor 2. AGE OF

    asked by Anon on March 19, 2015
  20. World History

    Which answer correctly compares the first medieval merchants to merchants of the High Middle Ages? A The first medieval merchants were higher in the social hierarchy, while merchants during the High Middle Ages were members of the lower social class. B The

    asked by Beou on August 23, 2017
  21. physics

    a 16.0-g bullet is shot into a wooden block at rest with mass 4550g on a frictionless surface. the block moves 1.20m/s after the bullet strikes and becomes lodged in the block. find the speed of the bullet before striking the block.

    asked by tommy on April 7, 2015
  22. physics

    A 2.0-kg wooden block slides down an inclined plane 1.0 m high and 3.0 m long. The block starts from rest at the top of the plane. The coefficient of kinetic friction between the block and plane is 0.35. What is the speed of the block when it reaches the

    asked by angel on August 1, 2011
  23. physics

    Can someone tell me if my answers are correct? A .145 kg block of wood hangs from the ceiling by a string. A bullet with a mass of .004 kg and a speed of 540 m/s strikes the block. After the collision, the block with the bullet embedded rises 42 cm up. a)

    asked by Anonymous on October 13, 2010
  24. math

    Bill ran into his neighbor from across the hall and asked her how old her children were. She replied, “Let’s see if you can figure it out. The product of their ages is 72 and the sum of their ages is the same as my apartment number.” Bill thought for

    asked by maggie on January 26, 2017
  25. physics

    A moving 1.60 kg block collides with a horizontal spring whose spring constant is 295 N/m. The block compresses the spring a maximum distance of 3.50 cm from its rest position. The coefficient of kinetic friction between the block and the horizontal

    asked by rory on February 29, 2008
  26. Physics

    A moving 4.80 kg block collides with a horizontal spring whose spring constant is 243 N/m. The block compresses the spring a maximum distance of 5.50 cm from its rest position. The coefficient of kinetic friction between the block and the horizontal

    asked by Courtney on March 5, 2008
  27. Physics

    A moving 3.20 kg block collides with a horizontal spring whose spring constant is 224 N/m. The block compresses the spring a maximum distance of 5.50 cm from its rest position. The coefficient of kinetic friction between the block and the horizontal

    asked by Laura on January 2, 2014
  28. Physics

    A moving 3.20 kg block collides with a horizontal spring whose spring constant is 224 N/m. The block compresses the spring a maximum distance of 5.50 cm from its rest position. The coefficient of kinetic friction between the block and the horizontal

    asked by Laura on December 31, 2013
  29. physics again it didnt work.

    A moving 1.60 kg block collides with a horizontal spring whose spring constant is 295 N/m. The block compresses the spring a maximum distance of 3.50 cm from its rest position. The coefficient of kinetic friction between the block and the horizontal

    asked by rory on March 1, 2008
  30. physics

    A moving 3.20 kg block collides with a horizontal spring whose spring constant is 224 N/m. The block compresses the spring a maximum distance of 5.50 cm from its rest position. The coefficient of kinetic friction between the block and the horizontal

    asked by Laura on December 30, 2013
  31. Math

    Bernie is the oldest of the four Bryant brothers. Bobby is twice as old as Billy, but 2 years younger than Bernie. Bernie is twice as old as Buddy. The youngest Bryant brother is 6 years old. What are the ages of the four Bryant brothers?

    asked by Alec on April 17, 2008
  32. physics

    A 3.0 kg block is sitting at rest at the edge of a cliff. A 400 gram bullet is fired at the block with an initial velocity of 500m/s. The bullet goes through the block and has a speed of 400m/s after it leaves the block. The block lands 50m from the base

    asked by TK on April 27, 2018
  33. phy

    A constant force does 12.0 Joules of work pushing a 350 gram block a distance of 2.5 meters up a ramp. The block starts from rest and reaches a speed of 4.75 m/s after being pushed for 2.5 m. The block’s potential energy increases by 5.0 J as it travels

    asked by ihsan on June 9, 2012
  34. Physics 121

    Two block are connected by a rope that runs over a pulley. The block on the tables has mass 4kg, the hanging block has mass 2kg, and the pulley has mass 0.5kg and radius 0.25m. Assume that the table is friction-less. If the block are released from the

    asked by Phil on May 6, 2012
  35. Physics

    A 0.400 kg block of wood hangs from the ceiling by a string, and a 0.0700 kg wad of putty is thrown straight upward, striking the bottom of the block with a speed of 5.80 m/s. The wad of putty sticks to the block. Is the mechanical energy of this system

    asked by Josie on November 14, 2010
  36. Physics

    A block slides down an incline. As it moves from point A to point B, which are 5.0 m apart, a force F acts on the block, with magnitude 2.1 N and directed down the incline. The magnitude of the frictional force acting on the block is 10 N. If the kinetic

    asked by John on March 13, 2011
  37. physics

    1. A piece of rectangular block weighing 5 kg is pressed on a vertical wall by a horizontal force applied to the block. If the coefficient of friction between the block and the wall is 2.0, what force is necessary to keep the block in place? 2. If the

    asked by ruby on March 20, 2013
  38. AP Physics C

    A 4.10 kg block is pushed along a floor by a constant applied force that is horizontal and has a magnitude of 39.0 N. Figure 6-26 gives the block's speed v versus time t as the block moves along an x axis on the floor. What is the coefficient of kinetic

    asked by John on October 29, 2014
  39. Government

    Which of these scenarios are constitutional according to the court's interpretation of eminent domain? Select all that apply. a. A state extends a needed highway and pays fair prices for houses that are in the way of the planned expansion. b. A town wants

    asked by girly girl on April 13, 2018
  40. Physics HELP!

    A 20.0 g bullet is fired horizontally into a 85 g wooden block that is initially at rest on a frictionless horizontal surface and connected to a spring having spring constant 156 N/m. The bullet becomes embedded in the block. The bullet block system

    asked by Megan on October 16, 2012
  41. Physics- Elena please help!

    A 20.0 g bullet is fired horizontally into a 85 g wooden block that is initially at rest on a frictionless horizontal surface and connected to a spring having spring constant 156 N/m. The bullet becomes embedded in the block. The bullet block system

    asked by Megan on October 16, 2012
  42. statistics

    A neuropsychologist is interested only in studying the most deviant portion of this population, that is, those individuals who fall within the top 10% and the bottom 10% of the distribution. She must determine the ages that mark these boundaries. What are

    asked by Mona on February 5, 2014
  43. Physics.

    A 500 g block lies on a horizontal tabletop. The coefficient of kinetic friction between the block and the surface is 0.25. The block is connected by a massless string to the second block with a mass of 300 g. The string passes over a light frictionless

    asked by Lissa. on May 31, 2014
  44. Physics

    A 50.0g Bullet traveling horizontally at 200.0 m/s embeds itself in a much more massive wooden block initially at rest on a horizontal surface (μ=0.10) The block then slides 1.2m toward an ideal spring and collides with it. The block compresses the spring

    asked by Alexander on November 21, 2010
  45. History

    Is dark ages same as early middle ages???

    asked by jason on November 9, 2013
  46. Physics

    A bullet of mass 0.02kg is fired at a speed of 500m/s towards a fixed wooden block of thickness 10cm. The bullet penetrates the block and emerges with a speed of 200m/s. a) Find the average retarding force on the bullet when it is passing through the

    asked by laura on December 5, 2010
  47. mechanics and fluids

    a block of mass 6 kg resting on a horizontal surface is connected by a cord passing over a light, frictionless pulley to a hanging block of mass 4 kg. the coefficient of kinetic friction between the block and the horizontal surface is 0.5. after the block

    asked by francis on September 9, 2014
  48. Mechanical engineering

    A bullet of mass 50 grams is fired horizontally into a wooden block of mass 0.2kg. The wodden block is suspended from the ceiling by a long string as shown in the diagram. After impact the bullet is embedded in the block and bullet and the block swing

    asked by ibroo on April 20, 2008
  49. physics

    Two forces, of magnitudes F1= 80.0N and F2= 50.0N, act in opposite directions on a block, which sits atop a frictionless surface, as shown in the figure. Initially, the center of the block is at position x1= -3.00cm. At some later time, the block has moved

    asked by physics please show steps on June 15, 2011
  50. physics

    a block of mass 3 kg rests on a smooth table and connected to another block of mass 2 kg, after passing over and ideal pulley, the block of mass 2 kg is released. how long does it take the block to travel 80 cm

    asked by n on August 12, 2014
  51. ph

    A 20.0 kg block is connected to a 30.0 kg block by a string that passes over a light, frictionless pulley. The 30.0 kg block is connected to a spring that has negligible mass and a force constant of 300 N/m, as shown in the figure below. The spring is

    asked by carlton on November 14, 2011
  52. physics

    A 20.0 kg block is connected to a 30.0 kg block by a string that passes over a light, frictionless pulley. The 30.0 kg block is connected to a spring that has negligible mass and a force constant of 300 N/m, as shown in the figure below. The spring is

    asked by carlton on November 14, 2011
  53. Physics

    A 20.0 kg block is connected to a 30.0 kg block by a string that passes over a light, frictionless pulley. The 30.0 kg block is connected to a spring that has negligible mass and a force constant of 260 N/m, as shown in the figure below. The spring is

    asked by JJ on February 28, 2016
  54. finance

    Suppose that you are 25 years old and you have two options to save money for retirement. Plan A allows you to save $3000 per year for the next 20 years, then sit for 20 years and finally draw on it for the following 30 years. Plan B allows you to wait 20

    asked by Jessie on January 15, 2013
  55. 12th grade

    Carefully describe the following distribution of ages (in years). Remember to include the shape, center, and spread. {20, 22, 24, 26, 23, 19, 34, 44, 25, 26} Are there any outliers? Justify your answer with calculations and explanation.

    asked by Anonymous on October 5, 2010
  56. Physics

    A 4.8‒kg block on a 39° inclined plane is acted on by a horizontal force of 46 N as shown below. The coefficient of kinetic friction between the block and the plane is 0.33. (a) What is the acceleration of the block if it is moving up the plane? (b)

    asked by Chrxeyshthoufov on February 23, 2014
  57. psychology 11

    Dan and maureen are married and have 2 children, ages 7 and 12. Dan coaches Litle League, and Maureen drives the kids to soccer practice. Dan works as a middle manager in a high-tech firm, and maureen is a successful architect. They own their own house, 2

    asked by Kerri on September 11, 2009
  58. physics please help!!

    A moving 2.20kg block collides with a horizontal spring whose spring constant is 419 N/m. The block compresses the spring a maximum distance of 9.00cm from its rest postion. The coefficient of kinetic friction between the block and the horizontal surface

    asked by archi on October 7, 2011
  59. Physics

    A block of mass M rests on a block of mass M1 = 5.00 kg which is on a tabletop. A light string passes over a frictionless peg and connects the blocks. The coefficient of kinetic friction mk at both surfaces equals 0.330. A force of 46.0 N pulls the upper

    asked by mike on September 24, 2018
  60. Physics

    A block whose weight is 34.0 N rests on a horizontal table. A horizontal force of 27.2 N is applied to the block. The coefficients of static and kinetic friction are 0.600 and 0.472, respectively. Will the block move under the influence of the force, and,

    asked by Samantha on November 8, 2013
  61. Physics

    A rope connects a 40 kg block to a 30 kg block. The rope passes over a pulley at the top of a 37° incline. The 40 kg block rests on the incline and the 30 kg block hangs from the pulley. Calculate the acceleration of either block.

    asked by Juan on March 12, 2018
  62. Physics ASAP

    A block of weight 20 N is pushed with a force of 30 N through a horizontal distance of 5 m using a stick which is at an angle of 37° from the horizontal as shown. The coefficient of kinetic friction µk between the table and the block is 0.25. For your

    asked by Sierra on December 10, 2012
  63. physics

    In the figure, a 5.40 kg block is sent sliding up a plane inclined at θ = 37.0° while a horizontal force Upper F Overscript right-arrow EndScripts of magnitude 50.0 N acts on it. The coefficient of kinetic friction between block and plane is 0.300. What

    asked by tresor on October 7, 2018
  64. physics

    A block lies on a smooth plane tilted at an angle è = 28.5° to the horizontal. Ignore friction. (a) Determine the acceleration of the block as it slides down the plane. 1 m/s2 (b) If the block starts from rest 9.40 m up the plane from its base, what will

    asked by An on December 7, 2010
  65. Physics

    Starting from rest, a 4-kg block slides 10 m down a frictionless 30 degree incline. Determine the work done on the block by a) The force of gravity b) The normal force c) All of the forces (the net force) on the block d) Find the Kinetic energy of the

    asked by Rachel on March 4, 2015
  66. physics

    a block of mass 0,5kg is attached to a spring .The spring is compressed to a distance of0,1m.The block is released .The block moves 0,07m past the equilibrium position .What is the force of friction that does work on the block. spring constant is 500

    asked by ruby on August 29, 2014
  67. Math Algebra

    Jessica is 4 years younger than Jennifer now. In 10 years, Jessica will be twice the age that Jennifer is now. Find the present ages of Jennifer and Jessica

    asked by Timothy on January 10, 2015
  68. PHYSICS, help!

    A 5 kg block rests on a frictionless horizontal surface. A cord attached to the block passes over the pulley whose diameter is 0.120 m to the hanging block of mass 5 kg. The system is released from rest and the blocks are observed to move 3m in 2.0 s. A.

    asked by Sunny on May 17, 2017
  69. PHYSICS

    A 5 kg block rests on a frictionless horizontal surface. A cord attached to the block passes over the pulley whose diameter is 0.120 m to the hanging block of mass 5 kg. The system is released from rest and the blocks are observed to move 3m in 2.0 s. A.

    asked by Happinessdelight on May 17, 2017
  70. Physics

    A wooden block and a lead ball are connected by a light string that passes over a frictionless pulley. The block has a mass of 6kg and the ball has a mass of 2kg. after they are released from rest, the block will slide along the wooden ramp. a.) which

    asked by Sadie on October 18, 2010
  71. Physics

    A 0.9-kg block (mass m) and a second block (mass M) are both initially at rest on a frictionless inclined plane. Mass M rests against a spring that has a force constant of 12.2 kN/m. The distance d along the plane between the two blocks is 3.64 m. The

    asked by Anonymous on November 9, 2014
  72. Physics

    A block of mass m = 2.00 kg is released from rest h = 0.500 m from the surface of a table, at the top of a theta = 30.0° incline. The frictionless incline is fixed on a table of height H = 2.00 m. (a) Determine the acceleration of the block as it slides

    asked by Edge on February 6, 2016
  73. algebra

    Jill is 2 years older than Mike. in 5 years, 5 times Mike's age will be 4 times Jill's age. how old is Mike? Write an equation that models how old in years each of you will be, when your ages add up to 150 years old. For example, if x = your age and the

    asked by Anonymous on January 21, 2013
  74. Physics

    A block of mass m1 = 4.80 kg sits on top of a second block of mass m2 = 15.6 kg, which in turn is on a horizontal table. The coefficients of friction between the two blocks are µs = 0.300 and µk = 0.100. The coefficients of friction between the lower

    asked by Annie on October 31, 2009
  75. Latin I

    1. Estne in Campania? a. where is Campania? b. he is in Campania, isn't he? c. he is not in Campania, is he? d. Is he in Campania? 2. Vesuviusne populum terruit? a. did vesuvius frighten the people? b. Vesuvius did not frighten the people, did it? c.

    asked by Jen on February 9, 2015
  76. English

    1. Half of the houses in the village were burnt down. 2. Half of the houses in the village burnt down. 3. Half of the houses in the village were burned down. 4. Half of the houses in the village burned down. ------------------ Are they grammatical? Which

    asked by rfvv on December 2, 2014
  77. Math

    Sheila's age is two years more than twice Nicole's age. The sum of their ages is the same as Steven's age. If Steven's age is ten years less than five times Nicole's age, ,find the age of each. Write a verbal model!

    asked by jj on October 7, 2010
  78. Physics

    A 5.00-kg block is placed on top of a 10.0-kg block which rests on a horizontal surface. The 5.00-kg block is tied to a wall with a horizontal string. A 45.0-N horizontal force directed away from the wall is then exerted on the 10.0-kg block. The

    asked by Anonymous on October 13, 2016
  79. physics

    home / study / science / physics / questions and answers / a block of mass 3kg s sliding along the frictionless ... Question A block of mass 3kg s sliding along the frictionless horizontal surface with a speed of 2m/s. 1. What is the kinetic energy of the

    asked by anna on April 27, 2016
  80. Math

    A boy is 42 years younger than his father .In 8 years' times , he will be 1/4 times as old as his father .Find their present ages. (Answer is boy= 6, father= 48)

    asked by Sam on October 10, 2017
  81. math

    If Leah is 6 years older than Sue, and John is 5 years older than Leah, and the total of their ages is 41. Then how old is Sue? How do you know what and, is, and older mean in mathematical terms?

    asked by amelie on October 18, 2010
  82. Math

    The sum of the ages of Devonte and Anna is 107 years. 11 years ago, Devonte's age was 4 times Anna's age. How old is Devonte now?

    asked by Jai on September 20, 2015
  83. Physic

    A 60-g bullet fired at two blocks resting on a surface with coefficient of kinetic friction =0.5. The bullet pass through a 8-kg block and make this block slides 0.8 m. And then the bullet lodges in another block which is 6 kg. The bullet make it slides

    asked by Takako on March 3, 2015
  84. Mathematics 3

    Aris is twice as old as Rico while Jay is 24 years younger than Aris. If half of Aris' age six years ago was three less than one half the sum of Rico's age in four years and Jay's present age, then what is their ages before and now.

    asked by Sylvestre on December 2, 2015
  85. Physics

    A block of mass m1 = 4.90 kg sits on top of a second block of mass m2 = 14.5 kg, which in turn is on a horizontal table. The coefficients of friction between the two blocks are µs = 0.300 and µk = 0.100. The coefficients of friction between the lower

    asked by Tom on November 16, 2013
  86. physics

    A copper block with a mass 1.82 kg is given an initial speed of 3.5 m/s on a rough horizontal surface. Because of friction, the block finally comes to rest. Assume that 77.4 % of the initial kinetic energy is absorbed by the block in form of heat, what is

    asked by Sam on February 9, 2012
  87. math <3

    7. the back-to-back stem-and-leaf plot below shows the ages of patients seen by two doctors in a family clinic one day. what is the difference between the age of the oldest patient seen by doctor 1 and the age of the oldest patient seen by doctor 2. AGE OF

    asked by Anonymous on March 17, 2015
  88. Statistics

    The distribution of ages in the United States in the year 2010 is given below. Intervals include the left endpoint but not the right; the number of people aged 100 or more was not zero but it was so small that it makes no difference to the table. You can

    asked by A on February 25, 2013
  89. Physics 1

    A horizontal force of 30 N pulls a block of mass 2.5 kg across a level floor. The coefficient of kinetic friction between the block and the floor is μK = 0.25. If the block begins with a speed of 2.0 m/s and is pulled for a distance of 18 m, what is the

    asked by John on October 9, 2012
  90. Physics

    The system shown in the following figure is in static equilibrium. Find the frictional force exerted on block (m1) given that the mass of block (m1) is 8.90 kg, the mass of block (m2) is 2.59 kg, and the coefficient of static friction between block (m1)

    asked by Eric Sowell on June 9, 2016
  91. Repost-Physics 1

    A horizontal force of 30 N pulls a block of mass 2.5 kg across a level floor. The coefficient of kinetic friction between the block and the floor is ìK = 0.25. If the block begins with a speed of 2.0 m/s and is pulled for a distance of 18 m, what is the

    asked by John on October 10, 2012
  92. Physics

    Each of 108 identical blocks sitting on a frictionless surface is connected to the next block by a massless string. The first block is pulled with a force of 108N. What is the tension in the string connecting block 108 to block 107?

    asked by Josh on October 11, 2011
  93. Physics

    Each of 108 identical blocks sitting on a frictionless surface is connected to the next block by a massless string. The first block is pulled with a force of 108N. What is the tension in the string connecting block 108 to block 107?

    asked by Josh on October 11, 2011
  94. physics

    A 2.5-kg block slides down a 17.0° inclined plane with constant acceleration. The block starts from rest at the top. At the bottom its velocity reaches 0.70 m/s. The length of the incline is 1.7 m. What is the acceleration of the block? What is the

    asked by Eddie on November 2, 2011
  95. physics

    A 4kg block is lowered down a 37° incline a distance of 5m from point A to point B. A horizontal force (F = 10 N) is applied to the block between A and B as shown in the figure. The kinetic energy of the block at A is 10 J and at B it is 20 J. How much

    asked by ATT on March 31, 2018
  96. physics

    a block of stone has a density of 2.75 g/cm3. the block has a mass of 3.30 kg. it measures 6.00 cm wide by 8.00 cm high by L cm long. how do i find L? if the block was in water with density of 1000kg/cm3 what would the buoyant force on the block be?

    asked by anon on December 6, 2017
  97. Physics - URGENT

    A small block of mass 5 kg initially rests on a track at the bottom of a circular, vertical loop-the-loop, which has a radius of 0.8 m. The surface contact between the block and the loop is frictionless. A bullet of mass 0.7 kg strikes the block

    asked by Richard on January 16, 2009
  98. Math

    In a class of 28 sixth graders all but one of the students are 12 years old. Which two data measurements are the same for the students ages?

    asked by Christian on August 31, 2017
  99. Math

    In a class of 28 sixth graders, all but one of the students are 12 years old. Which two measurements are the same for the student's ages? What are those measurements?

    asked by Aaliyah on August 19, 2008
  100. algebra

    in 8 years rachel will be twice as old as warren. Today the product of their ages is 384. how old is rachel and how old is warred?

    asked by erika on February 4, 2012